M3933/25-64S

Overview

The M3933/25-64S is a fixed RF attenuator manufactured by Cinch Connectivity Solutions Midwest Microwave. It provides a nominal attenuation value of 3dB within a frequency range of 0 Hz to 18 GHz. The component features SMA connectors and operates at a maximum power dissipation of 2W with a characteristic impedance of 50 Ohms. Designed for military applications, it complies with MIL-DTL-M3933 standards.

Feature Summary

• Complies with MIL-DTL-M3933 military specifications for reliability
• Provides precise 3dB signal attenuation across a wide bandwidth
• Utilizes robust SMA connector interface for secure integration

Applications

• Military radar systems requiring signal level control
• Avionics test and measurement equipment
• Defense communication subsystems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure correct connector gender and tolerance class. Confirm compliance requirements such as QPL status or screening levels if mandated by the end-use application. Check for RoHS exemption status as military-grade components often fall outside standard environmental directives.

Selection Notes

Select this model when a fixed 3dB reduction is required in high-frequency environments up to 18 GHz. Ensure the system impedance matches the 50 Ohm specification to prevent signal reflection. Consider the 2W power rating relative to peak signal levels to avoid thermal damage during operation.

Part Context

This part belongs to the M3933/25 series of connectorized attenuators from Midwest Microwave. These components are engineered for rugged defense and aerospace applications where consistent performance under extreme conditions is critical. The series offers various attenuation values while maintaining strict dimensional and electrical tolerances.

Replacement Considerations

Direct replacements must match the 3dB attenuation, 18 GHz frequency limit, and SMA interface. Verify that substitute parts meet the same MIL-DTL-M3933 qualification standards to maintain system integrity and regulatory compliance.